Relationship between microstructures and mechanical properties of Ti-4.5%Al-2%Mo-1.6%V-0.5%Fe-0.3%Si-0.03%C for next-generation aircraft applications

Toshikazu Akahori, Mitsuo Niinomi, Masaaki Nakai, Harumi Tsutsumi, Shiro Aki, Yoshio Itsumi, Shogo Murakami, Hideto Oyama

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The effects of microstructures on the mechanical properties of Ti-4.5Al-2Mo-1.6V-0.5Fe-0.3Si-0.03C(KS Ti-9)were systematically investigated by conducting several heat treatments for next-generation aircraft applications. The mechanical strength of as-received KS Ti-9 exhibits high anisotropy that is derived from the intense texture(T-texture)of the primary α phase. Such high anisotropy is observed in KS Ti-9 annealed at temperatures slightly below β -transus, but it is drastically decreased in KS Ti-9 subjected to an anisotropy controlling treatment. The reduction in the anisotropy for KS Ti-9 is related to the differences in the orientations of the precipitated acicular α phase.

Original languageEnglish
Pages (from-to)711-717
Number of pages7
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume61
Issue number12
DOIs
Publication statusPublished - 2011

Keywords

  • Anisotropy
  • Tensile properties
  • Texture
  • Type titanium alloy
  • α+β

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Relationship between microstructures and mechanical properties of Ti-4.5%Al-2%Mo-1.6%V-0.5%Fe-0.3%Si-0.03%C for next-generation aircraft applications'. Together they form a unique fingerprint.

Cite this